I _______ keep dogs for protection, but now I keep them as pets.
#78113
A
would rather
B
had better
C
used to
D
have to
推荐题目
You'd better not ride the bicycle on snowy days; you ______ fall．
#62235
A
must
B
might
C
have to
D
ought to
— Guess what! I have won the first prize in the speaking competition. — Congratulations! You _____ put a lot of work into it.
#62583
A
should
B
must
C
should have
D
must have